computer science: in class exercise

the value 11 (base 10) equal to X (base 2), X=?

• 201

• 101

• 1011

• 1101

FF (base 16) equal to X (base 10), X=?

• 254

• 255

• 256

• 257

computers can use pixels to display an image

• True

• False

• 10

• 20

• 30

• 40

(1101) AND (0111) = ?

• 0110

• 0101

• 0111

• 1111